Essay
A company claims that the standard deviation in their delivery time is less than 5 days. A sample of 27 past customers is taken. The average delivery time in the sample was 14 days with a standard deviation of 4.5 days. At 95% confidence, test the company's claim. Use the critical value approach.
Correct Answer:
Verified
H0: 
2 25
Ha: 2 < 25
ch...View Answer
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Correct Answer:
Verified
2 25Ha:
2 < 25ch...
View Answer
Unlock this answer now
Get Access to more Verified Answers free of charge
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